Big Bang nucleosynthesis constraint on baryonic isocurvature perturbations

被引：17

作者：

Inomata, Keisuke ^{[1
,2
]}

Kawasaki, Masahiro ^{[1
,2
]}

Kusenko, Alexander ^{[2
,3
]}

Yang, Louis ^{[2
]}

机构：

[1] Univ Tokyo, ICRR, Kashiwa, Chiba 2778582, Japan

[2] Univ Tokyo, UTIAS, Kavli IPMU WPI, Kashiwa, Chiba 2778583, Japan

[3] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2018年 / 12期

关键词：

big bang nucleosynthesis; cosmological perturbation theory; baryon asymmetry; inflation; PRIMORDIAL NUCLEOSYNTHESIS; PHASE-TRANSITION; EARLY UNIVERSE; FLUCTUATIONS; BARYOGENESIS; GENERATION; DIFFUSION; ABUNDANCE; DYNAMICS;

D O I：

10.1088/1475-7516/2018/12/003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the effect of large baryonic isocurvature perturbations on the abundance of deuterium (D) produced in big bang nucleosynthesis (BBN). Large baryonic isocurvature perturbations existing at the BBN epoch (T similar to 0.1 MeV) change the D abundance by a second order effect, which, together with the recent precise measurement of D abundance, leads to a constraint on the amplitude of the power spectrum of the baryonic isocurvature perturbations. We derive the upper limit on the amplitude P-SB less than or similar to 0.016 (2 sigma) for scales k(-1) greater than or similar to 0.0025 pc. This is the most stringent constraint for 0.1 Mpc(-1) less than or similar to k less than or similar to 4 x 10(8) Mpc(-1). We apply the BBN constraint to the relaxation leptogenesis scenario, where large baryonic isocurvature perturbations are produced in the last N-last e-fold of inflation, and we obtain a constraint on N-last.

引用

页数：14

共 49 条

[31] Generation of baryon inhomogeneities in the electroweak phase transition -: art. no. 023502
Mégevand, A
Astorga, F
[J]. PHYSICAL REVIEW D, 2005, 71 (02): : 023502 - 1
[32] Search for compensated isocurvature perturbations with Planck power spectra
Munoz, Julian B.
Grin, Daniel
Dai, Liang
Kamionkowski, Marc
Kovetz, Ely D.
[J]. PHYSICAL REVIEW D, 2016, 93 (04)
[33] Reheating the Universe Once More: The Dissipation of Acoustic Waves as a Novel Probe of Primordial Inhomogeneities on Even Smaller Scales
Nakama, Tomohiro
Suyama, Teruaki
Yokoyama, Jun'ichi
[J]. PHYSICAL REVIEW LETTERS, 2014, 113 (06)
[34] Primordial nucleosynthesis: theory and observations
Olive, KA
Steigman, G
Walker, TP
[J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2000, 333 (1-6): : 389 - 407
[35] Leptogenesis via neutrino production during Higgs condensate relaxation
Pearce, Lauren
Yang, Louis
Kusenko, Alexander
Peloso, Marco
[J]. PHYSICAL REVIEW D, 2015, 92 (02):
[36] A new, precise measurement of the primordial abundance of deuterium
Pettini, Max
Cooke, Ryan
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2012, 425 (04) : 2477 - 2486
[37] PArthENoPE: Public algorithm evaluating the nucleosynthesis of primordial elements
Pisanti, O.
Cirillo, A.
Esposito, S.
Iocco, F.
Mangano, G.
Miele, G.
Serpico, P. D.
[J]. COMPUTER PHYSICS COMMUNICATIONS, 2008, 178 (12) : 956 - 971
[38] Cosmological parameters from combining the Lyman-α forest with CMB, galaxy clustering and SN constraints
Seljak, Uros
Slosar, Anze
McDonald, Patrick
[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2006, (10):
[39] Large-Scale Distribution of Total Mass versus Luminous Matter from Baryon Acoustic Oscillations: First Search in the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey Data Release 10
Soumagnac, M. T.
Barkana, R.
Sabiu, C. G.
Loeb, A.
Ross, A. J.
Abdalla, F. B.
Balan, S. T.
Lahav, O.
[J]. PHYSICAL REVIEW LETTERS, 2016, 116 (20)
[40] Soumagnac M. T., ARXIV180210368

← 1 2 3 4 5 →